Is it a function?

Front

Does the table represent a function?

Back

A relation is a function if each input (x-value) has exactly one output (y-value).

Front

For the function rule, y = -2x + 3: If the input is 4, what is the output?

Back

The output is -5. (Calculation: y = -2(4) + 3 = -8 + 3 = -5)

Front

All of the x values or inputs are called what?

Back

Domain.

Front

Is the relation {(1,5),(1,7),(3,9),(4,11)} a function?

Back

No, because the input 1 has two different outputs (5 and 7).

Front

All of the y values or outputs are called what?

Back

Range.

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Front

What is the vertical line test?

Back

A method to determine if a relation is a function; if a vertical line intersects the graph more than once, it is not a function.

Front

What does it mean for a relation to be one-to-one?

Back

A one-to-one relation means that each input has a unique output and each output corresponds to a unique input.

Front

If the function rule is y = 3x - 2, what is y when x = 2?

Back

y = 4. (Calculation: y = 3(2) - 2 = 6 - 2 = 4)

Front

What is the range of the function y = x^2?

Back

The range is all non-negative real numbers (y ≥ 0).